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Finding the Fourth Proportional to 158,614.42, 218,888.04 and 86,995.84

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Solution

The fourth proportional to 158,614.42, 218,888.04 and 86,995.84 is: 120,054.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,614.42 : 218,888.04 = 86,995.84 : x
  2. Step 2: Convert to fraction form
    158,614.42/218,888.04 = 86,995.84/x
  3. Step 3: Cross multiply
    158,614.42x = 218,888.04 × 86,995.84
  4. Step 4: Simplify right side
    158,614.42x = 19,042,348,905.75
  5. Step 5: Solve for x
    x = 19,042,348,905.75/158,614.42
  6. Step 6: Final answer
    x = 120,054.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.